49 research outputs found
Coronary spiral CT
This dissertation describes the use and clinical potential of ECG gated multislice
spiral computed tomography in patients with coronary artery disease. First the
use of other non invasive cardiac imaging, i.e. the previously mentioned
electron beam CT and magnetic resonance imaging is reviewed (chapter 2.1).
Part 3 contains studies related to the characteristics of multislice spiral CT for
the imaging of the heart and coronary arteries, and the diagnostic potential of
ECG gated spiral CT coronary angiography to detect and visualize obstructive
coronary artery disease in symptomatic patients, using conventional coronary
angiography as the standard of reference. Part 4 is focussed on the feasibility
and characteristics of coronary wall imaging by CT, including the assessment of
non calcified atherosclerotic plaque material. The usefulness of
contrast enhanced multislice spiral CT in symptomatic patients who previously
underwent coronary artery bypass grafting and percutaneous coronary
intervention with stent implantation is discussed in part 5. Finally, the first results with the latest generation 16 slice computed tomography scanners and
patient preparation with ~ receptor blockers are described in part 6, including a
review and future outlook on the continuing development and clinical use of
non invasive coronary angiography with spiral computed tomography
Gadofosveset-enhanced magnetic resonance angiography
Gadofosveset (Vasovist®, Bayer Schering Pharma AG, Berlin/Germany) is the first intravascular contrast agent approved for use with magnetic resonance angiography in the European Union, Switzerland, Turkey, Canada, and Australia. Gadofosveset reversibly binds to albumin providing extended intravascular enhancement compared wth existing extracellular magnetic resonance contrast agents. Prior to approval, gadofosveset underwent extensive testing to evaluate the safety and efficacy of the drug; the clinical trials show that gadofosveset-enhanced magnetic resonance angiography (MRA) is safe and well tolerated in patients with vascular disease and effective for the detection of vascular stenosis and aneurysms gadofosveset has the potential to open new horizons in diagnostic MRA by increasing the spatial resolution and the robustness of MRA examinations and facilitating the examination of multiple vascular beds
Multislice computed tomography coronary angiography
__Abstract__
Computed Tomography (CT) imaging is also known as "CAT scanning"
(Computed Axia
The Importance of Imaging Assessment Before Endovascular Repair of Thoracic Aorta
AbstractIndications for and experience with placement of endovascular stent grafts in the thoracic aorta are still evolving. Recent advances in imaging technologies have drastically boosted the role of pre-procedural imaging. The accepted diagnostic gold standard, digital subtraction angiography, is now being challenged by the state-of-the-art computed tomography angiography (CTA), magnetic resonance angiography (MRA) and trans-oesophageal echocardiography (TEE). Among these, technological advancements of multidetector computed tomography (MDCT) have propelled it to being the default modality used, optimising the balance between spatial and temporal resolutions and invasiveness. MDCT angiography allows the comprehensive evaluation of thoracic lesions in terms of morphological features and extent, presence of thrombus, relationship with adjacent structures and branches as well as signs of impending or acute rupture, and is routinely used in these settings.In this article, we review the current state-of-the-art radiological imaging for thoracic endovascular aneurysm repair (TEVAR), especially focusing on the role of MDCT angiography. After analysing the technical aspects for optimised imaging protocols for thoracic aortic diseases, we discuss pre-procedural determinants of candidacy, and how to formulate interventional plans based on cross-sectional imaging